Congenital hydronephrosis, although well known, is not a common condition. In the literature one finds a moderate number of reports of so-called congenital hydronephrosis, many of which lack substantial evidence of proof of the clinical diagnosis by autopsy.
In the unusual case recorded in this report, the lower three fourths of the right ureter was atretic, losing itself as a microscopic fibrous cord in the region of the base of the urinary bladder.
REPORT OF A CASE
History.—A girl, S., weighing 7 pounds (3,175.1 Gm.), was delivered by breach extraction on June 20, 1933.
Immediately after delivery the abdomen was noted to be distended, and a mass was palpable in the right upper quadrant. The lower border of the liver was 2 fingerbreadths below the right costal margin. Immediately below this organ the upper border of a swelling could be outlined. This mass was the size of a lemon